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    <h1>我的第一次算数</h1>
    <script>  
    

        //将内容输出到控制台

         a=4;
         b=2;
         c=a+b;

         //可以同时输出多条，
         //格式是console.log("字符串",表达式)

         console.log("c*a=",c*a)
        console.log("c*a=",c*a)
        




    </script>


    
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